ES8306691A1 - "procedimiento para isomerizar el contenido de xileno de una mezcla de carga de compuestos hidrocarbonados aromaticos". - Google Patents

"procedimiento para isomerizar el contenido de xileno de una mezcla de carga de compuestos hidrocarbonados aromaticos".

Info

Publication number
ES8306691A1
ES8306691A1 ES509220A ES509220A ES8306691A1 ES 8306691 A1 ES8306691 A1 ES 8306691A1 ES 509220 A ES509220 A ES 509220A ES 509220 A ES509220 A ES 509220A ES 8306691 A1 ES8306691 A1 ES 8306691A1
Authority
ES
Spain
Prior art keywords
ethylbenzene
xylene isomerization
catalyst
isomerized
xylenes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES509220A
Other languages
English (en)
Other versions
ES509220A0 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ExxonMobil Oil Corp
Original Assignee
Mobil Oil Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mobil Oil Corp filed Critical Mobil Oil Corp
Publication of ES509220A0 publication Critical patent/ES509220A0/es
Publication of ES8306691A1 publication Critical patent/ES8306691A1/es
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00Catalysts comprising molecular sieves
    • B01J29/04Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/40Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/22Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by isomerisation
    • C07C5/27Rearrangement of carbon atoms in the hydrocarbon skeleton
    • C07C5/2702Catalytic processes not covered by C07C5/2732 - C07C5/31; Catalytic processes covered by both C07C5/2732 and C07C5/277 simultaneously
    • C07C5/2724Catalytic processes not covered by C07C5/2732 - C07C5/31; Catalytic processes covered by both C07C5/2732 and C07C5/277 simultaneously with metals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/10After treatment, characterised by the effect to be obtained
    • B01J2229/16After treatment, characterised by the effect to be obtained to increase the Si/Al ratio; Dealumination
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/30After treatment, characterised by the means used
    • B01J2229/36Steaming

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Catalysts (AREA)

Abstract

PROCEDIMIENTO PARA ISOMERIZAR EL CONTENIDO DE XILENO DE UNA MEZCLA DE CARGA DE COMPUESTOS HIDROCARBONADOS AROMATICOS QUE TIENEN 8 ATOMOS DE CARBONO. SE ISOMERIZA LA MEZCLA QUE CONTIENE XILENOS Y ETILBENCENO POR CONTACTO, EN CONDICIONES DE CONVERSION, DE ESTA Y DE HIDROGENO CON UN CATALIZADOR QUE COMPRENDE UN COMPONENTE DE HIDROGENACION Y UNA ZEOLITA CRISTALINA QUE TIENE UNA PROPORCION DE SILICE/ALUMINA MAYOR DE 12 Y UN INDICE DE IMPEDIMENTO DE 1 A 12, MANTENIENDO UNA TEMPERATURA DE CONVERSION DE 288 A 427 C. EL CATALIZADOR SE TRATA PREVIAMENTE CON VAPOR DE AGUA PARA REGULAR SU ACTIVIDAD ACIDA A UN VALOR ALFA MEDIDO DE 45 A 110 Y EL CONTACTO SE REALIZA A UNA VELOCIDAD ESPACIAL TAL QUE PRODUZCA UN CONTENIDO EN PARA-XILENO DE LOS XILENOS DE POR LO MENOS EL 98% DEL NECESARIO PARA EL EQUILIBRIO TERMODINAMICO Y UN PORCENTAJE DEL 10 A 60% DE CONVERSION DEL CONTENIDO INICIAL DE ETILBENCENO. EL PARA-XILENO SE EMPLEA PARA OBTENER ACIDO TEREFTALICO UTILIZABLE EN LA FABRICACION DE POLIESTERE S.
ES509220A 1981-02-02 1982-02-01 "procedimiento para isomerizar el contenido de xileno de una mezcla de carga de compuestos hidrocarbonados aromaticos". Expired ES8306691A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US23091681A 1981-02-02 1981-02-02

Publications (2)

Publication Number Publication Date
ES509220A0 ES509220A0 (es) 1983-06-01
ES8306691A1 true ES8306691A1 (es) 1983-06-01

Family

ID=22867070

Family Applications (1)

Application Number Title Priority Date Filing Date
ES509220A Expired ES8306691A1 (es) 1981-02-02 1982-02-01 "procedimiento para isomerizar el contenido de xileno de una mezcla de carga de compuestos hidrocarbonados aromaticos".

Country Status (13)

Country Link
EP (1) EP0057607B1 (es)
JP (1) JPS57150624A (es)
AR (1) AR242372A1 (es)
AU (1) AU550371B2 (es)
BR (1) BR8200535A (es)
CA (1) CA1175075A (es)
DD (1) DD202137A5 (es)
DE (1) DE3260614D1 (es)
ES (1) ES8306691A1 (es)
IN (1) IN155556B (es)
MX (1) MX159111A (es)
PL (1) PL235046A1 (es)
ZA (1) ZA82671B (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0102716B1 (en) * 1982-09-01 1986-09-10 Mobil Oil Corporation A process for isomerizing xylenes
EP0369078B1 (en) * 1988-11-16 1993-07-28 Indian Petrochemicals Corporation Ltd. Process for producing p-xylene and o-xylene
CA2032082A1 (en) * 1989-12-18 1991-06-19 Werner O. Haag Xylene isomerization process

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3856874A (en) * 1973-09-13 1974-12-24 Mobil Oil Corp Xylene isomerization
US4101595A (en) * 1977-05-02 1978-07-18 Mobil Oil Corporation Conversion of ethyl benzene to para xylene
US4224141A (en) * 1979-05-21 1980-09-23 Mobil Oil Corporation Manufacture of aromatic compounds
US4236996A (en) * 1979-05-25 1980-12-02 Mobil Oil Corporation Xylene isomerization

Also Published As

Publication number Publication date
DE3260614D1 (en) 1984-10-04
AU550371B2 (en) 1986-03-20
EP0057607A1 (en) 1982-08-11
MX159111A (es) 1989-04-21
ES509220A0 (es) 1983-06-01
IN155556B (es) 1985-02-16
DD202137A5 (de) 1983-08-31
ZA82671B (en) 1983-09-28
PL235046A1 (es) 1982-10-11
CA1175075A (en) 1984-09-25
AR242372A1 (es) 1993-03-31
EP0057607B1 (en) 1984-08-29
JPS57150624A (en) 1982-09-17
BR8200535A (pt) 1982-12-07
AU7981482A (en) 1982-09-23
JPS614818B2 (es) 1986-02-13

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20011110